S
M
T
W
T
F
S
26
66°
54°
27
68°
48°
28
69°
53°
29
65°
57°
30
65°
48°
31
70°
59°
1
71°
51°
2
69°
49°
3
73°
51°
4
76°
54°
5
72°
55°
6
68°
54°
7
69°
53°
8
68°
54°
9
67°
53°
10
68°
55°
11
67°
55°
12
68°
54°
13
67°
55°
14
69°
55°
15
67°
53°
16
63°
50°
17
63°
50°
18
67°
54°
19
65°
53°
20
69°
55°
21
70°
57°
22
70°
57°
23
69°
56°
24
69°
56°
25
70°
55°
26
66°
55°
27
65°
54°
28
64°
53°
29
63°
52°
30
66°
54°
31
70°
56°
1
70°
56°
2
69°
55°
3
70°
56°
4
68°
56°
5
66°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Coos Bay
Coos Bay's August 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 49° and 59°. The average high for August is 68° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Coos Bay. See also: September | October | November.
